The $1 billion Giant Magellan Telescope Project is being built at the Las Campanas Observatory in Chile on Cerro Las Campanas, elevation 2525 meters. Upon completion, it will be 200 feet tall and 3,961 square feet of total collecting area of mirrors with a resolving power 10 times greater than the Hubble Space Telescope. The GMT project consists of an international consortium of leading universities and science institutions including: Astronomy Australia Ltd., The Australian National University, Carnegie Institution for Science, Harvard University, Korea Astronomy and Space Science Institute, Smithsonian Institution, The University of Texas at Austin, Texas A&M University, The University of Arizona and University of Chicago. Spire was engaged to establish the Enclosure Building cost including the cost of the structural and mechanical components as well as all the cost associated with building the Enclosure. A cost estimate for the fabrication and assembly of the GMT Enclosure Building and its subsystems was provided. The broken down costs were made available to GMTO and included the costs of items such as:

• Procurement for various packages (e.g. steel package, concrete package)
• Enclosure building and subsystems fabrication
• Factory assembly and test
• Logistics and transportation
• Site assembly, erection, and test
• Commissioning